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PDF TH7887A Data sheet ( Hoja de datos )
| Número de pieza | TH7887A | |
| Descripción | Area Array CCD Image Sensor | |
| Fabricantes | ATMEL Corporation | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TH7887A (archivo pdf) en la parte inferior de esta página. Total 21 Páginas | ||
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Features
• 1024 x 1024 Pixels with Memory Zone
• Up to 60 Images/Second
• Built-in Antiblooming Device Providing an Electronic Shutter Function
• Pixel: 14 µm x 14 µm
• Image Zone: 14.34 x 14.34 mm²
• Four Outputs (256 x 1024 pixels) at 20 MHz Each
• Possible Binning 2 x 2
• Optical Shield against Parasitic Reflexions and Stray Light
• A/R Window in 400 - 700 nm Bandwidth
Description
The TH7887A is especially designed for high data rate applications (up to 60 pict/s) in
medical and industrial fields.
This area array image sensor consists of a 1024 x 1024 pixels (14 µm x 14 µm) image
zone associated to a memory zone (masked with optical shield).
In order to increase data rate, the image zone is divided into four zones (256 x 1024
each) which are read in parallel through 4 different outputs (readout frequency up to
20 MHz/output leading to a total readout frequency of 80 MHz).
The TH7887A is designed with antiblooming gates.
Moreover, the 2 x 2 binning mode is available on this sensor. In this case, the image
size is 512 x 512 with 28 µm x 28 µm pixels. Each output will read 128 x 512 pixels.
The TH7887A is sealed with a specific anti-reflective window optimized in 400 -
700 nm bandwidth.
Area Array CCD
Image Sensor
1024 x 1024
Pixels with
Antiblooming
TH7887A
Rev. 2146A–IMAGE–05/02
1
1 page  
TH7887A
Geometrical
Characteristics
The image zone features 1024 useful lines (+ 20 extra lines) of 1024 pixels. For readout
only, the full frame is split into 4 blocks of 256 columns.
The video line consists of 256 useful pixels, and 273 elements in total (for each output).
Figure 2. Video Line (on each output)
3 isolation lines
7 dark reference lines
First pixel
6 dark reference lines
Image zone
1024 useful pixels
1044 line
3 isolation lines
1 inactive line
Memory zone
1044 line
Vos1 Vos2 Vos3 Vos4
Pixels 1 to 17 : inactive prescan elements
Pixels 18 to 273 : useful elements
2146A–IMAGE–05/02
5
5 Page 
TH7887A
Binning Mode
Operation
In this mode, the image is composed of 512 x 512 pixels (28 µm x 28 µm each).
Figure 10. Summation in the Readout Register of 2 Adjacent Lines.
15 To
Φ M1
5To 3To 5To
Fall times and rise times:
see figures 8 & 9
Φ M2
Φ M3
5To 3To 5To
3To 5To
3To 3To
Φ M1
3To 3T0
5To
3To
Φ M =Φ M1
100 ns min
Φ L1
Φ L2
100 ns min
Figure 11. Summation of 2 Adjacent Pixels
Φ L1
Φ L2
ΦR
Output reset frequency
divided by 2
Vos 1,2,3,4
Pixel i
Useful signal
Pixel i
+
Pixel i+1
In binning mode operation maximum level of elementary pixel (14 x 14 µm) is reduced to Vsat/4.
2146A–IMAGE–05/02
11
11 Page | ||
| Páginas | Total 21 Páginas | |
| PDF Descargar | [ Datasheet TH7887A.PDF ] | |
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